- Transparent and simultaneous reading of M-Bus slave devices and communication with devices on RS-485 line via GSM network
- GPRS communication with MM20-GSM control system
- Reading up to 20 M-Bus slave devices
- Short-circuit protection of M-Bus line
- Galvanic isolation of M-Bus line up to 1kV DC
- Modbus TCP conversion into Modbus RTU protocol on RS-485 port
- RS-232 device setup interface
- Remote device setup via SMS
- Complete device status diagnostics using LED indications < / li>
- Power supply 9-30V DC or 230V AC
- Mounting on 35mm DIN rail
MM20
Communication device
Allows remote reading via GSM / GPRS connection









